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公开(公告)号:US20230182893A1
公开(公告)日:2023-06-15
申请号:US18166867
申请日:2023-02-09
Applicant: Textron Innovations Inc.
CPC classification number: B64C27/12 , B64C27/001 , B64C2027/002
Abstract: In an embodiment, a rotorcraft includes an airframe; a main rotor transmission; one or more brackets mounting the main rotor transmission to the airframe, longitudinal axes of the one or more brackets being substantially parallel with a longitudinal axis of the rotorcraft; and one or more restraints mounting the main rotor transmission to the airframe, the one or more restraints being mounted at an angle non-orthogonal to the longitudinal axis of the rotorcraft and a lateral axis of the rotorcraft.
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公开(公告)号:US11326661B2
公开(公告)日:2022-05-10
申请号:US16293040
申请日:2019-03-05
Applicant: TEXTRON INNOVATIONS INC.
Inventor: Michael Scott Seifert , Peter Quinn Romano , Thomas Parham
Abstract: The present invention includes a damper assembly, method and kit to provide dampening to an airframe comprising: a mass to dampen the vibration of the airframe; one or more wire rope isolators having a first and a second portion, wherein the mass is attached to the one or more wire rope isolators and the mass is isolated from the airframe by the one or more wire rope isolators; and a first fastener and a second fastener, wherein the first fasteners attaches to the first portion of the wire rope isolator to the mass, and the second fastener attaches the second portion of the wire rope isolator to the airframe to dampen vibration of the airframe.
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公开(公告)号:US20210331787A1
公开(公告)日:2021-10-28
申请号:US16855706
申请日:2020-04-22
Applicant: Textron Innovations Inc.
Inventor: Peter Quinn Romano , Frank Bradley Stamps , Michael Scott Seifert
Abstract: A liquid inertia vibration eliminator unit for an aircraft having first and second components includes an outer housing coupled to the first component of the aircraft, the outer housing forming an outer housing cavity. The liquid inertia vibration eliminator unit includes a spherical bearing disposed in the outer housing cavity and forming a spherical bearing cavity. A piston is disposed in the spherical bearing cavity and coupled to the second component of the aircraft. Top and bottom fluid chambers are disposed in the spherical bearing cavity on opposite sides of the piston. A tuning passage provides fluid communication between the top and bottom fluid chambers. A tuning fluid moves between the top and bottom fluid chambers via the tuning passage to isolate vibration between the first and second components of the aircraft.
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公开(公告)号:US11584521B2
公开(公告)日:2023-02-21
申请号:US16584448
申请日:2019-09-26
Applicant: Textron Innovations Inc.
Abstract: In an embodiment, a rotorcraft includes an airframe; a main rotor transmission; one or more brackets mounting the main rotor transmission to the airframe, longitudinal axes of the one or more brackets being substantially parallel with a longitudinal axis of the rotorcraft; and one or more restraints mounting the main rotor transmission to the airframe, the one or more restraints being mounted at an angle non-orthogonal to the longitudinal axis of the rotorcraft and a lateral axis of the rotorcraft.
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公开(公告)号:US11440648B2
公开(公告)日:2022-09-13
申请号:US16855706
申请日:2020-04-22
Applicant: Textron Innovations Inc.
Inventor: Peter Quinn Romano , Frank Bradley Stamps , Michael Scott Seifert
Abstract: A liquid inertia vibration eliminator unit for an aircraft having first and second components includes an outer housing coupled to the first component of the aircraft, the outer housing forming an outer housing cavity. The liquid inertia vibration eliminator unit includes a spherical bearing disposed in the outer housing cavity and forming a spherical bearing cavity. A piston is disposed in the spherical bearing cavity and coupled to the second component of the aircraft. Top and bottom fluid chambers are disposed in the spherical bearing cavity on opposite sides of the piston. A tuning passage provides fluid communication between the top and bottom fluid chambers. A tuning fluid moves between the top and bottom fluid chambers via the tuning passage to isolate vibration between the first and second components of the aircraft.
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